I need design a 6LoWPAN supported node using a TI CC1120 controlled by a TI ARM Cortex M4 TIVA 123 Lanchpad. I require to run TCP, IPV6 along with 6LoWPAN in the Lanchpad connected to the CC1120.
I ...

I need to design an RF amplifier with high gain. It seems every RF book teaches cascading, but not cascoding. Is there a disadvantage to cascoding? It seems like we don't need to match impedances with ...

Background Info
The company I work for builds Active RFID hardware that needs to conform to the regulations defined in ETSI EN 300 220 (Part 1). Our working frequency is 433.92 MHz. I am responsible ...

I've been trying to build a hartley oscillator and have almost succeeded, however my calculations are off by appx 1000 relative to the measured waveform. AND the kicker is that it only works when I ...

Like the title already states, I am searching an RF Downconverter for a range between 250MHz and 5GHz. I would like to use the converter for several projects I am working on. Among them I would like ...

I have a Pioneer HiFi amplifier+tuner but the FM radio reception is very poor, probably because I don't have the antenna cable anymore to plug here (see image below).
(But I also remember that when I ...

What are the pros and cons of using a Colpitts or a Hartley configuration for an oscillator?I know that the difference between them is the form of feedback, but does one or the other perform better ...

I am working with FSK transmitter and modulator on the 433 MHz band, I am wondering how can I measure the QoS of the resultant link given that
The receiver reports the received analog data only with ...

I have designed a PCB trace antenna for a BLE module. I used an existing reference design, which is offered to be used in your own design. I am able to connect to the radio, and on a spectrum analyzer ...

I am working on a project to wirelessly check whether any of four switches are pressed and I don't want to use a microcontroller on the transmitter side. I have worked with the cheap 434MHz HT12E/D ...

Suppose that I'm working on a system which needs to use a transceiver with an FM signal. If that system moves very fast (i.e. it is a satellite or whatever) in which the maximum doppler effect can be ...

Would 14 MHz ISM Worldwide band have superior range and penetration (equal tx power)capability than the 433 MHz band? In that case, why aren't any transceivers made for this band?
My application is ...

As per the TI document I came across which compares narrow band sub-1 usage vs wide band sub-1 usage mentions a concept called coding gain and its disadvantages.
Because of my lack of understanding ...

I want to have one circuit generate a radio frequency and have another circuit act on the presence of that radio wave, to turn a transistor ON and light up a LED for example. Just a simple as that, I ...

I'm developing a 2.4Ghz mesh and I've a problem with MRF24J40MC transceivers being damaged. The exact issue is that the transceiver can't receive incoming data unless the transmitter is very close, ...

I wish to design and simulate IF filters using ceramic resonators and crystal oscillators in OrCAD Capture or LT SPICE. The default libraries don't have any ceramics, so anyone know where to download ...

I'd like to make a small chip using either the Texas Instruments CC1101 or the Nordic nrf9e5 that provides a range of different frequencies. This is mostly meant to be a tool for playing around at my ...

If the same channel-width is allocated for a WiFi channel and also for a Sub-1 GHz channel, would the maximum allowable speed be the same for both channels theoretically?
If they differ, what is the ...

I have a question about RSSI and EIRP. When I bring my smartphone very near my antenna wifi router (+20 dBm EIRP) the analyzer wifi application shows me an RSSI level about -20 to -25 dBm (a negative ...

For a passive filter stage, I want to combine a high pass filter with a low pass filter to create a bandbass filter. Can I just make a simple RC circuit for each and connect them together? Or would we ...

I always wondered how ear phone wires acted as antenna giving input to the connected device and also acted as the output driving speakers... Does the the frequency of these has to do something with ...

I was always fascinated by this idea. You are literally able to communicate or open a web browser from anywhere in the world. I am OK with the low power device able to receive data from satellites, ...

I need to track case pans at work, I would like to do so by using cheap 433Mhz receivers. My problem is we have up to six hundred case pans in the building at any given time. Will I be able to use one ...

I would like to understand how colpitt's oscillator works but I'm confused because there are many configurations on the internet and I don't know what is the difference between them.
For the next two ...

At my workplace we have to monitor devices that operate at 433 and 869 MHz, but lately there's an area that for some reason has a transmitter, that isn't ours, jamming the communications. The signal ...

I was tasked to work on an 'RF Detector Circuit' for work. The circuit has an input RF power of 72 Watts at a 7.5GHz frequency through an 8mm wire. It's supposes to reduce that power and voltage, and ...

I am working on FDTD simulation of any space. I can work with Matlab and C code for 1D and 2D case but for 3D case it becomes complicated so I want to use CST microwave studio. I want to run simple ...